What does the 0.8 cubic meter water card set in the property mean?

The usage limit of this card is 0.8 cubic meters of water. The 0.8 cubic meter water card set in the property is issued to monitor the water consumption of households, which means that the card's use limit is 0.8 cubic meter of water. This setting can be used to control the water consumption of households, prevent waste or beyond a reasonable range, and thus achieve the purpose of saving water resources.